EP 0935769 B1 20001213 - HIGHLY CANTED RETROREFLECTIVE CUBE CORNER ARTICLE
Title (en)
HIGHLY CANTED RETROREFLECTIVE CUBE CORNER ARTICLE
Title (de)
STARK GENEIGTER RETROREFLEKTIERENDER WUERFELECKIGER ARTIKEL
Title (fr)
ARTICLE A ELEMENTS EN COIN DE CUBE, RETROREFLECHISSANT ET FORTEMENT BISEAUTE
Publication
Application
Priority
- US 9718550 W 19971015
- US 74284096 A 19961101
Abstract (en)
[origin: US5734501A] A retroreflective article that exhibits high retroreflective efficiency in response to light incident on the sheeting at high angles of incidence is disclosed. A retroreflective article includes a body portion having a base surface and a structured surface opposite the base surface. The structured surface includes a plurality of retroreflective cube corner elements defined by two intersecting groove sets. Each cube corner element has three tetragonal optically reflective faces that intersect to define a cube corner apex and two tetragonal non-optical faces that intersect along an edge. The symmetry axes of the cube corner elements are substantially parallel.
IPC 1-7
IPC 8 full level
G02B 5/124 (2006.01)
CPC (source: EP KR US)
G02B 5/124 (2013.01 - EP KR US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 5734501 A 19980331; AU 4820897 A 19980529; AU 728761 B2 20010118; CA 2269478 A1 19980514; CN 1235678 A 19991117; DE 69703703 D1 20010118; DE 69703703 T2 20010412; EP 0935769 A1 19990818; EP 0935769 B1 20001213; JP 2001503879 A 20010321; JP 4009751 B2 20071121; KR 20000052834 A 20000825; WO 9820374 A1 19980514
DOCDB simple family (application)
US 74284096 A 19961101; AU 4820897 A 19971015; CA 2269478 A 19971015; CN 97199311 A 19971015; DE 69703703 T 19971015; EP 97910951 A 19971015; JP 52141198 A 19971015; KR 19997003664 A 19990427; US 9718550 W 19971015